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Finding the Fourth Proportional to 551,094.38, 760,524.30 and 309,395.33

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Solution

The fourth proportional to 551,094.38, 760,524.30 and 309,395.33 is: 426,973.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,094.38 : 760,524.30 = 309,395.33 : x
  2. Step 2: Convert to fraction form
    551,094.38/760,524.30 = 309,395.33/x
  3. Step 3: Cross multiply
    551,094.38x = 760,524.30 × 309,395.33
  4. Step 4: Simplify right side
    551,094.38x = 235,302,666,771.52
  5. Step 5: Solve for x
    x = 235,302,666,771.52/551,094.38
  6. Step 6: Final answer
    x = 426,973.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.